Results 21 to 30 of about 80,746 (319)

tRNA functional signatures classify plastids as late-branching cyanobacteria. [PDF]

open access: yes, 2019
BackgroundEukaryotes acquired the trait of oxygenic photosynthesis through endosymbiosis of the cyanobacterial progenitor of plastid organelles. Despite recent advances in the phylogenomics of Cyanobacteria, the phylogenetic root of plastids remains ...
Amrine, Katherine Ch   +3 more
core   +1 more source

The origin of plastids [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2008
It is generally accepted that plastids first arose by acquisition of photosynthetic prokaryotic endosymbionts by non-photosynthetic eukaryotic hosts. It is also accepted that photosynthetic eukaryotes were acquired on several occasions as endosymbionts by non-photosynthetic eukaryote hosts to form secondary plastids.
Adrian C. Barbrook   +4 more
openaire   +4 more sources

Evolution: The plasticity of plastids

open access: yesCurrent Biology, 2023
Many chloroplast-bearing plants and algae lost their photosynthetic activity during evolution but retained their chloroplasts for other functions. A group of dinoflagellate algae apparently lost one half of their photosynthetic machinery but retained the other, providing a novel mechanism for light perception.
Howe, Christopher J   +2 more
openaire   +2 more sources

Nucleotide Transport and Metabolism in Diatoms

open access: yesBiomolecules, 2019
Plastids, organelles that evolved from cyanobacteria via endosymbiosis in eukaryotes, provide carbohydrates for the formation of biomass and for mitochondrial energy production to the cell.
Ansgar Gruber, Ilka Haferkamp
doaj   +1 more source

Chloroplast to chromoplast transition in tomato fruit: spectral confocalmicroscopy analyses of carotenoids and chlorophylls in isolated plastids and time-lapse recording on intact live tissue [PDF]

open access: yes, 2011
During evolution, chromoplasts have emerged as plastid structures which accumulate pigments to facilitate flower pollination and seed dispersal of fleshy fruit.
Barsan, Cristina   +7 more
core   +1 more source

Phytochrome activates the plastid-encoded RNA polymerase for chloroplast biogenesis via nucleus-to-plastid signaling. [PDF]

open access: yes, 2019
Light initiates chloroplast biogenesis by activating photosynthesis-associated genes encoded by not only the nuclear but also the plastidial genome, but how photoreceptors control plastidial gene expression remains enigmatic.
Blaha, Gregor M   +6 more
core   +2 more sources

A targeted capture approach to generating reference sequence databases for chloroplast gene regions

open access: yesEcology and Evolution, 2022
Metabarcoding has improved the way we understand plants within our environment, from their ecology and conservation to invasive species management. The notion of identifying plant taxa within environmental samples relies on the ability to match unknown ...
Nicole R. Foster   +7 more
doaj   +1 more source

Analysis of chlorophyll fluorescence reveals stage specific patterns of chloroplast-containing cells during Arabidopsis embryogenesis [PDF]

open access: yes, 2010
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602010000100012&lng=es&nrm=isoThe basic body plan of a plant is established early in embryogenesis when cells differentiate, giving rise to the apical and basal regions of the embryo.
Meisel, Lee   +2 more
core   +2 more sources

A functional TOC complex contributes to gravity signal transduction in Arabidopsis

open access: yesFrontiers in Plant Science, 2014
Although plastid sedimentation has long been recognized as important for a plant’s perception of gravity, it was recently shown that plastids play an additional function in gravitropism. The Translocon at the Outer envelope membrane of Chloroplasts (TOC)
Allison Karen Strohm   +2 more
doaj   +1 more source

Characteristics of the tomato chromoplast revealed by proteomic analysis [PDF]

open access: yes, 2010
Chromoplasts are non-photosynthetic specialized plastids that are important in ripening tomato fruit (Solanum lycopersicum) since, among other functions, they are the site of accumulation of coloured compounds.
Barsan, Cristina   +9 more
core   +3 more sources

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